To top it off, Valve's head honcho Gabe Newell stopped by while they were playing and autographed their copy of Half-Life 2. Rybolton has posted pictures of his fanciful day as well as a short preview of Portal. Rybolton loved it, and thought the female voice was humorous. He teased it with some twist that occurs toward the end, but won't tell us.
Super kudos to Valve, for being so generous to their fan base.
[via Evil Avatar]